Level path

SRE Practitioner

SRE

Own features and services with solid implementation judgment across neighboring layers.

Total concepts 266

Curated for this specific career level.

Specific to this level 18

Concepts explicitly listed in this level.

Knowledge tracks 6

Concepts span multiple tracks and layers.

Job description signals Typical responsibilities

Define and improve reliability, latency, capacity, observability, incident response, and operational readiness.
Automate toil, harden production systems, and create feedback loops through SLOs and postmortems.
Partner with engineering teams to design systems that fail safely and recover predictably.
Own features end to end from design through implementation, testing, release, and support.
Make local technical tradeoffs and explain them clearly to teammates.
Improve reliability, maintainability, and observability of the systems you touch.
Collaborate with product, design, QA, operations, and adjacent engineering teams.

Cumulative view includes

Dev / Junior DevSE / Junior SEInfrastructure Engineering / Junior Infrastructure EngineerSRE / Junior SREDev / DevSE / Mid SEInfrastructure Engineering / Infrastructure Engineer

Specific to this level 18 Cumulative 266

Track / layer mastery Concept coverage by layer

OPS

Operations

15 concepts

Reliability 6 Continuous Integration 4 Deployment 4 Observability 1

{}

Software

3 concepts

System Design 3

{}

Software

153 concepts

Software Design 35 Programming 23 System Design 21 Programming Languages 13 Algorithms & Data Structures 12 Computer Networks 11 Security 11 Databases 10 Operating Systems 5 Software Architecture 5 Quality Assurance 5 Distributed Systems 2

OPS

Operations

71 concepts

Deployment 16 Observability 15 Reliability 12 Runtime Infrastructure 9 Build & Packaging 7 Continuous Integration 6 Cloud Infrastructure 4 Local Development 1 Security Operations 1

MGT

Management

19 concepts

Business Foundations 10 Requirements & Planning 6 Delivery Methodologies 2 Team Leadership 1

Product

17 concepts

Developer Tools 11 API Products 4 Web Applications 2

DATA

Data

3 concepts

Data Foundations 2 Data Platforms 1

Theory

3 concepts

Algorithmic Analysis 3

Learning scope Concepts by learning area

Specific to this level

Concepts introduced by this level

Level concepts

Reliability Foundations

Understand the core vocabulary of resilient systems.

Horizontal Scaling Software · System Design new Autoscaling Software · System Design new

Level concepts

Production Signals

Observe and diagnose production systems using telemetry.

SLA Operations · Reliability new

Level concepts

Distributed Operations

Operate distributed systems under traffic, failure, and consistency constraints.

Replication Software · System Design new

Level concepts

Deployment & Recovery

Ship changes safely and recover when systems fail.

Blue-Green Deployment Operations · Deployment new Canary Deployment Operations · Deployment new Continuous Deployment Operations · Deployment new Error Budget Operations · Reliability new Reliability Metrics Operations · Reliability new Throughput Metrics Operations · Observability new RCA Operations · Reliability new Postmortem Operations · Reliability new DORA Metrics Operations · Continuous Integration new Deployment Frequency Operations · Continuous Integration new Lead Time for Changes Operations · Continuous Integration new Change Failure Rate Operations · Continuous Integration new MTTR Operations · Reliability new Roll Forward Operations · Deployment new

Cumulative level expectation

All concepts expected at this level

Inherited path

Coding Foundations

Developers begin by learning to translate requirements into working, readable code.

Inherited path

Developer Tooling

Daily development depends on version control, language tooling, static checks, and repeatable local workflows.

Git Product · Developer Tools awareness Compiler Software · Programming Languages awareness Interpreter Software · Programming Languages Package Manager Operations · Build & Packaging Linting Operations · Build & Packaging Code Editor Product · Developer Tools CLI Software · Operating Systems Version Control Product · Developer Tools Dependency Operations · Build & Packaging Artifact Operations · Build & Packaging Development Environment Operations · Local Development Software Ecosystem Software · Programming Repository Product · Developer Tools awareness Commit Product · Developer Tools awareness Branch Product · Developer Tools awareness Pull Request Product · Developer Tools awareness

Inherited path

Testing & Debugging

A developer owns not only writing code, but proving that it behaves as intended.

Unit Test Software · quality-assurance awareness Debugger Product · Developer Tools awareness Error Handling Software · Programming Code Documentation Software · Software Design Software Testing Software · quality-assurance awareness Test Case Software · quality-assurance awareness

Inherited path

Software Systems Basics

Even implementation-focused developers need a working vocabulary for clients, servers, interfaces, web requests, and the lifecycle surrounding a change.